Espresso machine



FIG. 1 is a perspective view of our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is the right side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown in the drawings are for purposes of illustrating portions of the design and form no part of the claimed design. 

CLAIM What is claimed is the ornamental design for an espresso machine, as shown and described. 